1142442544 has 40 divisors (see below), whose sum is σ = 2249356032. Its totient is φ = 562021440.

The previous prime is 1142442541. The next prime is 1142442557. The reversal of 1142442544 is 4452442411.

It is not an unprimeable number, because it can be changed into a prime (1142442541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347629 + ... + 350899.

Almost surely, 2^1142442544 is an apocalyptic number.

It is an amenable number.

1142442544 is a deficient number, since it is larger than the sum of its proper divisors (1106913488).

1142442544 is a wasteful number, since it uses less digits than its factorization.

1142442544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625 (or 3619 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

The square root of 1142442544 is about 33800.0376331151. The cubic root of 1142442544 is about 1045.3894731942.

Adding to 1142442544 its reverse (4452442411), we get a palindrome (5594884955).

The spelling of 1142442544 in words is "one billion, one hundred forty-two million, four hundred forty-two thousand, five hundred forty-four".